Oil containing bearing end cover of fan motor for air conditioner

Abstract

The oiliness bearing end cover of the fan electric machine used in the air condition belongs to the air condition electric machine technology domain, it can solve the problem of the production of the shake and the noise when the concentric degree of the bearing room, the ball bearing and the axes hole of the existing fan electric machine ball bearing. The technology process frame includes the center pressing oiliness bearing room and the axis of rotation open hole, the several end cover of the clipping claw is rushed to form in the ring center; the nip mat rubber washer are connected in the end cover with the clipping claw in turn, the center contains the oiliness bearing cover of the axis of rotation open hole and the oiliness bearing tray; the oil cotton is filly loaded the two sides of the oiliness bearing cover. the invention has many merits such as the brief frame, the low cost, the easy machining and assemble, the low badness percentage and the good working ability, the easy concentric adopting of the bearing room slot, the bearing, the axis of rotation and the open hole of the axis of rotation, the same axis degree, the decreasing shock of the fan electric machine and the noise.

Description

technical field [0001] The invention relates to the technical field of air-conditioning motors, in particular to an oil-impregnated bearing end cover of an air-conditioning fan motor. Background technique [0002] Such as figure 1 , 2 Shown existing air conditioner fan motor is mainly by motor upper end cover 21; Motor rotor 25 and rotating shaft 22; Motor upper and lower ball bearing 23; Motor stator 26; The stator 26 is composed of a stator core and a stator winding. Its iron core is made of laminated silicon steel sheets with a thickness of 0.5mm, and slots are distributed on its inner circumference for embedding stator windings. The rotor 25 includes a rotor iron core, a rotor winding and a rotating shaft 22. The rotor iron core is punched into a garden shape and laminated by a silicon steel sheet with a thickness of 0.5mm. There is a semi-closed groove on its outer circle to embed the rotor winding. There is an interference fit between the rotating shaft embedding h...

AI Technical Summary

Problems solved by technology

The upper and lower end covers 21 are connected by bolts through the stator 26. There is a bearing chamber 23' in the middle of the end cover for placing the ball bearing 23. There is a shaft hole 12 in the center to allow the rotating shaft 22 to pass through. However, this type of existing air-conditioning fan motor ball The bearing end cover requires that the ball bearing 23 and the bearing chamber 23' cooperate very precisely, that is, the machining accuracy of the bearing chamber 23' is better, the concentricity and coaxiality of the bearing chamber 23' and the shaft hole 12 are better, and the deformation is smaller, otherwise the bearing will be damaged when the motor is running. 23 and the bearing chamber 23' are prone to vibration, friction and noise, affecting the quality of the motor and air conditioner. Therefore, the ball bearing end cover is difficult to manufacture, poor in workability, expensive in processing, and high in defective products.

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